Attachment for phonographs.



PATENTBD SEPT. 5, 1905.

L. T. PRUDON. ATTACHMENT FOR PHONOGRAPHS.

A'PPLIOATION FILED 76113.27, 1905- INVENTOR loud? ZZZ-14am WITNESSES:

ATTORNEYS mnazw a minim co. wwrn-umonmvuzns. waswmmon. u c.

UNITED STATES PATENT OFFICE.

ATTACHMENT FOR PHONOGRAPHS.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed March 27,1905. Serial No. 252,188.

To all whom it may concern:

Be it known that I, LoUIs T. Pnnnoa, a citizen of the United States, anda resident of North Bergen, in the county of Hudson and State of NewJersey, have invented a new and Improved Attachment for Phonographs, ofwhich the following is a full, clear, and exact description.

My invention relates to an attachment for phonographs and similarinstruments, said attachment being in the nature of a gage for stoppingthe carriage of a phonograph at any desired point in order to makerepetitions of a record without repeating portions of the record whichprecede the part that it is desired to repeat.

The invention comprises a convenient attachment for this purpose, meansfor adjusting it roughly, and means for giving it a line adjustmentafter the rough adjustment is made.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a diagrammatic view of a phonegraph, showing a preferredform of my invention applied thereto. Fig. 2 is a sectional view of theattachment through the center of the adjusting-rod, and Fig. 3 is atransverse section of the same.

The device may be applied to any kind of a phonographorgraphophone,andconsequently l have conventionallyillustrated one having a carriage aand a stationary rail 7/. Upon this rail may be mounted at any point abracket (3, designed to be fixed to the rail by a screw (l. The bracketis provided with a flange 0, designed to project over the rear of therail in order to furnish a guide and assist in holding it in fixedposition. The bracket is provided with a hub 0 having a longitudinalpassage for receiving a sleeve 0. This sleeve is designed to be placedlongitudinally with respect to the rail and to be secured at any desiredpoint in the hub by means of a screwf. This affords a rough adjustmentfor the device.

The inside of the sleeve is screw-tlu'eaded, either throughout itslength or merely at one end, and receivesarod 5 provided withscrewthreads for engaging the screw-threads on the interior of thesleeve. The rod passes through the sleeve longitudinally and is providedwith a stop /1 on one end and with a thumb-nut 7 upon the other. It willbe clear that the turning of the nut will result in a minute adjustmentof the rod with respect to the sleeve and that consequently the rod iscapable of two adjustments on the bracket which itself can be adjustedto any desired position upon the rail.

The operation of the device is as follows: As the carriage moves alongwith respect to the rail from the left to right the bracket is moved upto any convenient point and lixed to the rail by means of the screw (Z.The sleeve (1 and rod are preferably located at this time in theirextreme left-hand position. Then as the carriage continues to move thesleeve e can be moved along with it and adjusted to any convenientposition which the operator considers as being near to the point atwhich the portion of the record to be reproduced will commence. Then thenut is manipulated to keep the stop /1 in contact with a portion of thecarriage, and as soon as the desired part of the record commences toreproduce this fine adjustment is stopped. After the record is completedthe carriage is returned until it strikes the stop it, and then themachine can be started with the certainty that the record desired willbe reproduced.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination with a phonograph having a movablecarriage and a stationary rail, of a stop adapted to be placed in thepath of the carriage, and means for mounting the stop upon the rail saidmeans comprising a bracket adapted to be secured to the rail in anydesired position.

2. An attachment for phonographs, comprising a bracket adapted to beadjustably mounted in stationary position upon the frame of the machine,and a stop movably mounted upon the bracket.

3. An attachment for phonographs, comprising a bracket adapted to bemounted in stationary position upon the frame of the machine, a stopmovably mounted upon the bracket, and two independent means foradjusting the position of the stop with respect to the bracket.

i. An attachment for phonographs, comprising a bracket adapted to besecured to a machine, said bracket having a hub, a sleeve mounted insaid hub, a rod passing through said sleeve and provided with a stop,and means for adjusting the position of said stop with respect to thebracket.

5. An attachment for phonographs, comprising a bracket, means forsecuring the bracket at any desired position along the length of thephonograph, said bracket being provided with a hub havingapassagelongitudinally placed with respect to the direction of travel of thecarriage of the phonograph, a sleeve mounted in said passage, a screwfor securing said sleeve in any desired position with respect to thehub, a rod passing through said sleeve, said rod and sleeve beingprovided with screw-threads for afford- LOUIS T. PRUDON.

WVitne-sses:

THoMAs W HITE, HENRY PRUnoN.

